/Engine/Source/Editor/UnrealEd/Public/MRUFavoritesList.h
Checks the MRU item specified by the provided index against the optional 'DoesMRUFavoritesItemPassFilterDelegate'.
true if the item specified by the index passes the filter or if no filter has been provided; false if it does not pass the filter
bool MRUItemPassesCurrentFilter ( int32 ItemIndex ) const